"Officers subdued the man, covered him and sent him to a hospital for treatment of minor injuries suffered in the tussle.

"A reporter for the Daily Caller website, who was entering the White House through the same checkpoint, said the man had told the Secret Service officers he had a 3 p.m. appointment with President Barack Obama and presented his identification.

"The reporter said the ID was rejected because it was from a foreign country and the man then began undressing while insisting that he had to keep his appointment with Obama."